[Samba] Local account login failed when samba join to LDAP

[FC Mario Patty]

Johnson, my previous comment about pam, I think it has nothing to do with
samba share, so you have to choose which backend you want to use. In this
case, you should export your local account to ldap too. I don't know
whether  we can use tdbsam and ldap simultaneously.


On Thu, Mar 27, 2014 at 9:32 AM, Johnson Cheng <
Johnson.Cheng at qsantechnology.com> wrote:

>  Dear Mario,
>
>
>
> Whatever I set "domain logons = yes" or not, the results are the same.
>
> In addition, whatever I use PAM "obey pam restrictions = yes" or not, the
> results are the same.
>
> I don't know where the problem is??
>
>
>
> Regards,
>
> Johnson
>
>
>
> *From:* FC Mario Patty [mailto:fcmario76 at gmail.com]
> *Sent:* Wednesday, March 26, 2014 11:44 PM
> *To:* Johnson Cheng
> *Cc:* samba at lists.samba.org
> *Subject:* Re: [Samba] Local account login failed when samba join to LDAP
>
>
>
> Johnson,
>
> Is this a samba pdc or file server? A file server doesn't need "domain
> logons = yes" parameter. I'm going to check my configuration tomorrow for
> I'm at home right now. I believe it has something to do with pam.
>
>
>
> # switch passdb backend from ldap to tdbsam will sure bring back your
> local samba account - that's where your local accounts live; wbinfo will
> give you nothing unless you configured samba to be one and you got winbind
> running.
>
>
>
> On Fri, Mar 21, 2014 at 4:53 PM, Johnson Cheng <
> Johnson.Cheng at qsantechnology.com> wrote:
>
> Dears,
>
> My samba version is 3.6.4
> I have a problem to co-work with open LDAP server. When samba join to open
> LDAP server, my local account can NOT login samba anymore, only LDAP
> account can login.
> When my samba come back to standalone, the local account is OK. Did I miss
> something?
>
> The following is my configuration files, I list the part of them,
> smb.conf
> server string = "Samba Server"
> workgroup = WORKGROUP
> security = user
> obey pam restrictions = yes
> passdb backend = ldapsam:ldap://192.168.8.143
> ldap admin dn = cn=admin, dc=ff,dc=com
> ldap suffix = dc=ff,dc=com
> domain logons = yes
> ldap ssl = off
> ldap passwd sync = yes
> ldap group suffix = ou=Groups
> ldap user suffix = ou=Users
> ldap machine suffix = ou=Machines
> ldap delete dn = yes
>
> nslcd.conf
> uid admin
> gid Administrator_Group
> uri ldap://192.168.8.143
> base dc=ff,dc=com
>
> /etc/nssswitch.conf
> passwd: files ldap
> group:  files ldap
> shadow: files ldap
>
> /etc/pam.d/samba
> auth    sufficient      /usr/lib/security/pam_ldap.so
> auth    sufficient      /usr/lib/security/pam_unix.so
> account sufficient      /usr/lib/security/pam_ldap.so
> account sufficient      /usr/lib/security/pam_unix.so
> session sufficient      /usr/lib/security/pam_ldap.so
> session sufficient      /usr/lib/security/pam_unix.so
>
> I can use LDAP account to login samba via the below command,
> smbclient -L 192.168.8.75 -U kevin2%123456123456
>
> But when I use local account to login samba via smbclient, it reports
> "session setup failed: NT_STATUS_LOGON_FAILURE"
> smbclient -L 192.168.8.75 -U qq%qq
>
> One thing is interested that when I change "passdb backend =
> ldapsam:ldap://192.168.8.143" to "passdb backend = tdbsam", local account
> can login samba but LDAP account will fail to login.
> The below is samba output debug message,
> [2014/03/21 17:44:25.780867,  5] lib/smbldap.c:1439(smbldap_search_ext)
>   smbldap_search_ext: base => [dc=ff,dc=com], filter =>
> [(&(uid=qq)(objectclass=sambaSamAccount))], scope => [2]
> [2014/03/21 17:44:25.781685,  4]
> passdb/pdb_ldap.c:1581(ldapsam_getsampwnam)
>   ldapsam_getsampwnam: Unable to locate user [qq] count=0
> [2014/03/21 17:44:25.781846,  4] smbd/sec_ctx.c:422(pop_sec_ctx)
>   pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
> [2014/03/21 17:44:25.781931,  3]
> auth/check_samsec.c:399(check_sam_security)
>   check_sam_security: Couldn't find user 'qq' in passdb.
> [2014/03/21 17:44:25.782108,  5] auth/auth.c:271(check_ntlm_password)
>   check_ntlm_password: sam authentication for user [qq] FAILED with error
> NT_STATUS_NO_SUCH_USER
> [2014/03/21 17:44:25.782213, 10]
> auth/auth_winbind.c:50(check_winbind_security)
>   Check auth for: [qq]
> [2014/03/21 17:44:25.782293,  3]
> auth/auth_winbind.c:60(check_winbind_security)
>   check_winbind_security: Not using winbind, requested domain [WORKGROUP]
> was for this SAM.
> [2014/03/21 17:44:25.782372, 10] auth/auth.c:259(check_ntlm_password)
>   check_ntlm_password: winbind had nothing to say
> [2014/03/21 17:44:25.787728,  2] auth/auth.c:334(check_ntlm_password)
>   check_ntlm_password:  Authentication for user [qq] -> [qq] FAILED with
> error NT_STATUS_NO_SUCH_USER
> [2014/03/21 17:44:25.787936,  3] smbd/error.c:81(error_packet_set)
>   error packet at smbd/sesssetup.c(124) cmd=115 (SMBsesssetupX)
> NT_STATUS_LOGON_FAILURE
>
>
> Any suggestion will be appreciated.
>
> Regards,
> Johnson
>
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